The story loses its novelty after you do it the first time. The Realm of Light quest was really good when I did it the first time but im on the 4th time right now and it's getting frustrating. I feel like quest-locked stuff like items, dungeons, and raids could be unlocked account wide instead of per character.
I feel like something like this would have already been suggested, I understand quests are a core part of the game but I feel like at one point its a bit... not needed.